Yamaha YZF-R125 Service Manual: Chassis

Adjusting the headlight beams
The following procedure applies to both of the headlights. 1. Adjust: Headlight beam (vertically) a. Turn the adjusting screw "1" in direction "a" or "b". A. Left headlight B. Right he ...

General chassis
Installing the air filter case 1. Install: Air filter case joint clamp NOTE: Align the projection "a" on the air filter case with the slot "b" in the air filter case joint cl ...

Other materials:

Checking and replacing the rear wheel sprocket
1. Check: Rear wheel sprocket More than 1/4 tooth "a" wear Replace the rear wheel sprocket. Bent teeth Replace the rear wheel sprocket. b. Correct 1. Drive chain roller 2. Rear wheel sprocket 2. Replace: Rear wheel sprocket a. Remove the self-locking nuts and the ...

Cleaning and lubricating the drive chain
The drive chain must be cleaned and lubricated at the intervals specified in the periodic maintenance and lubrication chart, otherwise it will quickly wear out, especially when riding in dusty or wet areas. Service the drive chain as follows. NOTICE The drive chain must be lubricated ...

Checking the fuel line
1. Remove: Left side panel Refer to "GENERAL CHASSIS" on page 4-1. 2. Lift the fuel tank. (Do not disconnect the fuel hose, drain hose 3. Check: Fuel hose "1" Cracks/damage → Replace. Loose connection Connect properly. 4. Install: Fuel tank Refer to "FUEL TANK" on pa ...

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